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Finding the Fourth Proportional to 111.14, 153.26 and 95.59

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Solution

The fourth proportional to 111.14, 153.26 and 95.59 is: 131.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.14 : 153.26 = 95.59 : x
  2. Step 2: Convert to fraction form
    111.14/153.26 = 95.59/x
  3. Step 3: Cross multiply
    111.14x = 153.26 × 95.59
  4. Step 4: Simplify right side
    111.14x = 14,649.36
  5. Step 5: Solve for x
    x = 14,649.36/111.14
  6. Step 6: Final answer
    x = 131.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.